Product details:

Engage your muscles at the office with this VARIChair, so you can stay active while working. The low back promotes good posture while the articulating pedestal allows you to rock and stretch as you work. Overall Dimensions: 23"H x 15-3/4"W x 15-3/4"D. Weight capacity tested to support 220 lb. Low-profile back helps promote good posture. Provides a dynamic range of movement both sitting and standing to engage your leg, back and core muscles. Cushioned vinyl seat is comfortable and durable. Height adjusts from 23 to 32-3/4" via an air-lift piston mechanism. Secure pedestal base ensures stability. Save time - no assembly required.